Join Date: Nov 2018
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So ran the truck today. I got the IR gun used a sharpy to make dots on;the drivers side of the intake, on the egr cooler, on the oil filter housing, and on the side of the radiator to indicate where to aim the gun. I warmed the truck drove it about 10 miles pulled over and grabbed the IR gun and logged my temperatures in Apple note. After traveling 18.8 miles I pulled over and repeated the process with the IR gun. Well the engineers at Apple seem to think that i am too dumb to enter data in to Apple note and it changed my data to make the numbers sequential 136,137,138, etc. so I had to adjust fire as my baseline data was now invalid.
I had some screenshots of the ambient temperature displayed on my dash and I had been watching the OBDII air temp and the IAT2 temp via forscan. So I rolled with this data.
So run one with the egr in place;
Ambient displayed temperature was 58-61 F
OBDII air temp was 60-69 degrees.
IAT2 temp was 87-99F
Parked the truck for a while and then replaced the egr with the eBay spool. Afterwards repeated my run. It was slightly warmer out so the data varied slightly and there was still heat in the motor trans, etc..
Second run with spool in place;
Ambient displayed temp was now 69F
OBDII air temp was 70-82F
IAT2 temp was 94-102 during this run.
In all fairness I did NOT watch the data as closely during the second run. These runs were at a displayed 69mph in the 70 zones and a displayed 60mph in the 55mph zones. These were fairly low boost runs probably average 7-12. Under high boost conditions maybe the outcome would be different.
I have not really thought too extensively about this data; what it means or itís validity. While driving I was thinking that the spool had led to a greater IAT2:OBDII air temp delta, but after writing down the numbers and reviewing them it appears that the spool has decreased that delta. By no means is this scientific and there are probably a whole lot of details I am missing. I will think about it further and post back my thoughts, but this is what I have so far. I would prefer to have data logged the data but I am not that savvy with the tuner or the monitors yet.